: the contact stated while driving 55 mph, the check engine light illuminated without warning. The vehicle was inspected by a dealer who determined the charcoal canister of the emission control needed to be replaced. After the replacement, the check engine light discontinued illuminating. The manufacturer was alerted. Updated 9/20/2006 -

- Niskayuna, NY, USA

My check engine light has been on for more than a year. It would not turn off. Because of the smog check issue, I had to take my vehicle to the Toyota dealer for them to diagnose the problem. They charged my $80 just for the diagnosis. I felt it was a rip-off. They told me that my egr valve and vacuum switching valve have to be replaced. The cost would be $650. Since this has to do with emission issue, Toyota should be the one covering the charges. Apparently, this problem is prevalent among recent Toyota models.

- Burbank, CA, USA

Check engine light came on in my wife's 2000 Toyota Camry le, 4 cylinder. Dealer charged $72 for diagnosis and recommended replacement of charcoal canister due to emissions vent control system malfunction, code po 440. I didnt get it done. Did some research on the internet and see dozens of similar complaints from Toyota users. Cant Toyota correct this problem, as its obviously a design or manufacturing flaw?

- Worcester, MA, USA

2000 Toyota Camry with 33,000 miles. The check engine light came on. Dealer said it was codes PO440 PO441 and PO446. They said I need a new "canister and control valve" and it will cost $600. As I understand it, this is some kind of charcoal filed canister that deals with emissions. It would seem that this is a non essential part. It would also seem that this would have few, if any, movable parts and should last the life of the car. This had to be a manufacturing defect and could not be related to use of the car or the driver. The manufacturer should stand behind this part and replace it on a car with so few miles.

- Schenectady, NY, USA